Verified Solution • 2025–26 Session
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QJEEM21Ch66d1: JEE Main 2021 Chemistry - Class 12 JEEM21Ch66d1 Solution: Arrange the following Cobalt complexes in the order of…
Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value.
Complexes :
Choose the correct option :
Complexes :
Choose the correct option :
Multiple Choice Options
- A A < B < C < D
- B B < A < C < D
- C B < C < D < A
- D C < D < B < A
Step-by-Step Verified Solution
(i) CFSE charge or oxidation no. of central metal ion.
(ii) CFSE strength of ligand
en > NH3 > H2O > F
order of CFSE
\mathop {{{[Co{{(en)}_3}]}^{ + 3}}}\limits^{III} > \mathop {{{[Co{{(N{H_3})}_6}]}^{ + 3}}}\limits^{III} > \mathop {{{[Co{F_6}]}^{ - 3}}}\limits^{III} > \mathop {{{[Co{{({H_2}O)}_6}]}^{ + 2}}}\limits^{III}
(ii) CFSE strength of ligand
en > NH3 > H2O > F
order of CFSE
\mathop {{{[Co{{(en)}_3}]}^{ + 3}}}\limits^{III} > \mathop {{{[Co{{(N{H_3})}_6}]}^{ + 3}}}\limits^{III} > \mathop {{{[Co{F_6}]}^{ - 3}}}\limits^{III} > \mathop {{{[Co{{({H_2}O)}_6}]}^{ + 2}}}\limits^{III}